[1] Med Univ Bialystok, Dept Childrens Dis 2, Bialystok, Poland
[2] Mem Healthy Inst, Dept Endocrinol, Warsaw, Poland
[3] Med Univ Bialystok, Dept Paediat Lab Diagnost, Bialystok, Poland
[4] Med Univ, Dept Clin Immunol, Bialystok, Poland
[5] Med Univ Bialystok, Dept Nucl Med, Bialystok, Poland